Introduction: Congestive heart failure (CHF) is a common disease and its prevalence is increasing in industrialized countries. NT-proBNP measurement is an established diagnostic test for diagnosis of CHF in patients who present to emergency room with acute dyspnea. The primary object of this study was to determine the relationship between levels of brain natriuretic peptide precursor and severity of lung function impairment in patients with chronic CHF.
Methods: This cross-sectional and analytical study that performed in Tuberculosis and Lung Disease Research Center of Tabriz University of Medical Sciences on 95 patients with chronic heart failure, and relation between NT-proBNP levels and pulmonary function parameters were examined.
Results: Sixty-four patients were male and 31 were female. The average age of male and females was 62.90 ± 11.54 and 61.61 ± 11.98 years, respectively. A significant inverse linear correlation was found between NT-proBNP and FEV1 (P < 0.001, r = -0.367), FVC (P < 0.001, r = -0.444), TLC (P = 0.022, r = -0.238), maximal midexpiratory flow (MMEF) (P = 0.047, r = -0.207) and left ventricular ejection fraction (LVEF) (P < 0.001, r = -0.461). A significant positive linear correlation was found between NT-proBNP and FEV1/FVC (P = 0.013, r = 0.257), RV/TLC (P = 0.003, r=0.303) and 5 Hz Raw (r = 0.231, P = 0.024).
Conclusion: This study showed that, both restrictive and obstructive ventilator impairments can occur in chronic CHF and as NT-proBNP increases appropriate to hemodynamic deterioration, pulmonary dysfunction increases.
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| http://dx.doi.org/10.15171/jcvtr.2015.05 | DOI Listing |
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